提交.Net6版本

Yi.Framework.Net6/Yi.Framework.WebCore/MiddlewareExtend/PreOptionRequestExtension.cs

@@ -0,0 +1,47 @@
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Yi.Framework.WebCore.MiddlewareExtend
+{
+    /// <summary>
+    /// 预检请求扩展
+    /// </summary>
+    public class PreOptionRequestExtension
+    {
+        private readonly RequestDelegate _next;
+
+        public PreOptionRequestExtension(RequestDelegate next)
+        {
+            _next = next;
+        }
+
+        public async Task Invoke(HttpContext context)
+        {
+            if (context.Request.Method.ToUpper() == "OPTIONS")
+            {
+                //context.Response.Headers.Add("Access-Control-Allow-Origin", "http://localhost:8070");
+                //context.Response.Headers.Add("Access-Control-Allow-Methods", "GET,PUT,POST,DELETE,PATCH,OPTIONS");
+                //context.Response.Headers.Add("Access-Control-Allow-Headers", "*");
+                context.Response.StatusCode = 200;
+                return;
+            }
+            await _next.Invoke(context);
+        }
+    }
+
+    /// <summary>
+    /// 扩展中间件
+    /// </summary>
+    public static class PreOptionsRequestMiddlewareExtensions
+    {
+        public static IApplicationBuilder UsePreOptionsRequest(this IApplicationBuilder app)
+        {
+            return app.UseMiddleware<PreOptionRequestExtension>();
+        }
+    }
+
+}